Metal rail-tie.



A. G. DINKEY.

METAL RAIL-TIE.

APPLICATION IILLD JULY 18, 1911.

Patented 11 11.23, 1912.

WITNESSES mvzrgon M COLUMBIA UNITED STATES PATENT GFFTC ALVA C. DINKEY,OF PITTSBURGH, PENNSYLVANIA.

METAL RAIL-TIE.

To all whom it may concern Be it known that I, ALVA C. DINKEY, ofPittsburgh, in thecounty of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improvements in Metal Rail-Ties, ofwhich the following is a specification.

My invention relates to the construction of railway cross ties formed ofsteel or similar material, and more particularly relates to theconstruction of wrought metal railway ties having top and bottom membersoined together by and extending outwardly from the marginal edges of asubstantially perpendicular web member.

One object of my invent-ion is to provide a railway tie formed of rolledmetal mem bers T-sha-ped in cross section and having the metal formingthe tie distributed or disposed in a novel manner whereby all of themetal in the tie is made effective and the lateral and transversestrength of the tie is largely increased.

Another object of this invention is to provide a. metal tie formed ofrolled metal members substantially T-shaped in cross section, and havingimproved means for transmitting the loads on the track rails secured tothe ties to the roadbed of the track in which the tie is placed, by theuse of which such loads are positioned and concentrated in the properlocation on the tie and a material increase in the effective strength ofthe ties is made possible without substantial increase in the weight oramount of material used in forming the tie.

A further object of the invention is to provide a metal tie having animproved construction and arrangement of the parts forming the tie, aswill more fully appear hereinafter.

Referring to the drawing forming part of this specification, Figure 1 isa longitudinal side elevation of a metal railway tie constructed andarranged in accordance with my invention. Fig. 2isa side elevation on anenlarged scale, of a portion of the same, showing the preferred mannerof securing the track rails on the rail seats of the tie. Fig. 3 is asectional end elevation of the tie construction shown in Figs. 1 and 2,the section being taken on the line IIIIII of Fig. 1. Fig. 4 is alongitudinal side elevation similar to that shown in Fig. 1 showing amodified form of construction. Fig. 5 is a sectional end elevation on anen- Specification of Letters Patent.

Application filed July 18, 1911.

Patented Apr. 23, 1912.

Serial No. 639,163.

larged scale taken on the line VV of Fig. 4. Fig. 6 is a similarsectional end elevation on the line VIVI. of either Figs. 1 or 4.

In the accompanying drawings, referring to Figs. 1, 2 and 3, the letterA designates the base, B the vertically extending web, and C thehorizontally extending rail seat or top member of the tie to which thetrack rails are secured when the ties and rails are in position in theroadbed of a railway track.

The base A is formed of a rolled metal shape substantially T-shaped incross section and having oppositely ext-ending legs 2, 2, oined to thelower marginal edge of a third leg 3, which projects upwardlyperpendicular to the legs 2, 2, and forms a portion of the web member Bin the completed tie. The rail seats C are formed of relatively shorterpieces of a similar rolled metal substantially T-shaped section andhaving oppositely extending legs 4. 4, joined integrally to the uppermarginal edge of a third leg 5. The leg 5 extends vertically downwardand with the leg member 3 of the base A forms the vertically extendingweb member B of the tie. In the construction shown in the drawing, thelegs 3 and 5 have a jog or projection in one face or side surface,forming an offset 6 in each leg 3 and 5, which is engaged by the toe ormarginal edge of the opposite leg 3 or 5 when the T- shaped members areassembled in forming the tie. Rivets 7 or equivalent bolts are employedto rigidly secure the contacting legs 3 and 5 together in forming thetie.

The oppositely extending legs 2, 2, of the base member A are bentdownwardly and inwardly in a peculiar manner so as to increase thelateral and transverse strength of the tie by increasing the eflectivedepth of the girder or beam formed by the tie in the middle of thelength of the tie and by decreasing the transverse width of the base ofthe tie at points between the centers of the track rails so as to lessenthe bearing surface of the tie on the roadbed at points between thecenters of the track rails.

As will be seen by reference to Figs. 1, 3 and 6, the flanges 2, 2, ofthe base are bent downwardly and inwardly, the amount of bendinggradually increasing from the vertical center of the track rails towardthe center of the length of the tie so that the greatest amount ofbending is at a point approximately in the middle of the length of thetie. The flange members 2 are also bent downwardly and inwardly from thevertical center of the track rails toward the ends of the tie, so thatthe greatest amount of bending of the end portions of the tie is at theextreme ends of the tie.

The legs at, t, forming the rail seats are provided with openingsthrough which T-head bolts 8 extend in holding the rail clips 9 inengagement with the tie and rails in securing the rails in position. Theclips 9 as shown, are provided with downwardly extending lugs 10 whichare arranged to project into openings 11 provided for that purpose intothe horizontal legs d of the upper l section forming the rail seats ofthe tie.

In the construction shown in Figs. 4, 5 and 6, the tie is likewiseprovided with a base A, web B, and rail seating or top por tion C. Inthis construction rolled metal shapes substantially T-shaped in crosssection are again employed and the legs 3 and 5 of these shapes arejoined together by rivets 7, in a similar manner to that shown in thepreceding figures. In this construction, however, the oppositelyextending legs 4, 4, of the top member C are continuous and of the samelength as the legs 2, 2, and 3, forming the base A of the tie. In thisconstruction the legs 2, 2, are bent downwardly and inwardly in a verysimilar manner to that shown in Figs. 1, 2 and 3, the difference beingthat in Figs. 4 and 5 the bending of the legs 2, 2, begins immediatelybeneath the vertical center of the track rails instead of at points somelittle distance on either side of the rail centers, as shown in Figs. 1,2 and 3.

The top members C of this tie are provided with openings through whichthe bolts 8 and the lugs 10 on the rail clips 9 extend when the clipsare in position to hold the track rails in position on the tie in thesame manner as in Figs. 1, 2 and 3.

The advantages of my invention result from the peculiar manner offorming the ties from two T-shaped rolled metal shapes and from themanner in which the legs forming the base flanges are bent down wardlyand inwardly.

By constructing the tie of two T-shaped rolled metal shapes having oneleg of each section secured together to form the web member of the tie,the web member, which transmits the loads applied to the rails to theroadbed of the tie, is great-1y strengthened.

Modifications in the construction and an rangement of the parts may bemade with out departing from my invention. -When desired the lower endsof the opposite bent down legs may be secured together by means of tiebolts, and other changes may be made.

I claim 1. A railroad tie comprising in combination a T-shaped memberhaving leg portions bent gradually and increasingly downward from pointsbelow the rail seats toward the longitudinal center of the tie, a secondTshaped member superposed on said first T-shaped member, the legs of thetwo mem bers forming the web of the tie over-lapping, interfitting andbeing rigidly secured together.

2. A railroad tie composed of two T-shaped members the legs whereof areoverlapped and rigidly secured together, the overlapping legs beingprovided with ottsets forming shoulders in the sides thereof, themarginal edge of each leg engaging in the shoulder of the other and thetwo rigidly united.

3. A railroad tie composed of two rolled members T-shaped in crosssection, the legs of each member being provided with a seat. or shouldernear its head for the end of the leg of the other member and the twolegs being rigidly secured together in overlapping position.

t. A railroad tie composed of two rolled members T-shaped in crosssection, t-he legs of each member being provided with a seat or shouldernear its head for the end of the leg of the other member and the twolegs being rigidly secured together in overlapping position, the membersforming rail seats having rail clip openings and the other memberforming the tie base having portions of its flanges bent graduallydownwardly and inwardly from points below the rail seats toward themiddle of the length of the tie.

In testimony whereof, I have hereunto set my hand.

ALVA C. DIN KEY.

Witnesses M. BAILEY, J. R. SHOLLAR.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

